<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
 <head>
  <meta http-equiv="content-type" content="text/html; charset=UTF-8">
  <title>水平地画一行字符串</title>
<link media="all" rel="stylesheet" type="text/css" href="styles/03e73060321a0a848018724a6c83de7f-theme-base.css" />
<link media="all" rel="stylesheet" type="text/css" href="styles/03e73060321a0a848018724a6c83de7f-theme-medium.css" />

 </head>
 <body class="docs"><div class="navbar navbar-fixed-top">
  <div class="navbar-inner clearfix">
    <ul class="nav" style="width: 100%">
      <li style="float: left;"><a href="function.imagesettile.html">« imagesettile</a></li>
      <li style="float: right;"><a href="function.imagestringup.html">imagestringup »</a></li>
    </ul>
  </div>
</div>
<div id="breadcrumbs" class="clearfix">
  <ul class="breadcrumbs-container">
    <li><a href="index.html">PHP Manual</a></li>
    <li><a href="ref.image.html">GD 和图像处理 函数</a></li>
    <li>水平地画一行字符串</li>
  </ul>
</div>
<div id="layout">
  <div id="layout-content"><div id="function.imagestring" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">imagestring</h1>
  <p class="verinfo">(PHP 4, PHP 5, PHP 7, PHP 8)</p><p class="refpurpose"><span class="refname">imagestring</span> &mdash; <span class="dc-title">水平地画一行字符串</span></p>

 </div>
 <div class="refsect1 unknown-unknown-noteu" id="refsect1-function.imagestring-unknown-unknown-noteu">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="methodname"><strong>imagestring</strong></span>(<br>&nbsp;&nbsp;&nbsp;&nbsp;<span class="methodparam"><span class="type">resource</span> <code class="parameter">$image</code></span>,<br>&nbsp;&nbsp;&nbsp;&nbsp;<span class="methodparam"><span class="type">int</span> <code class="parameter">$font</code></span>,<br>&nbsp;&nbsp;&nbsp;&nbsp;<span class="methodparam"><span class="type">int</span> <code class="parameter">$x</code></span>,<br>&nbsp;&nbsp;&nbsp;&nbsp;<span class="methodparam"><span class="type">int</span> <code class="parameter">$y</code></span>,<br>&nbsp;&nbsp;&nbsp;&nbsp;<span class="methodparam"><span class="type">string</span> <code class="parameter">$s</code></span>,<br>&nbsp;&nbsp;&nbsp;&nbsp;<span class="methodparam"><span class="type">int</span> <code class="parameter">$col</code></span><br>): <span class="type">bool</span></div>

  <p class="para rdfs-comment">
   <span class="function"><strong>imagestring()</strong></span> 用 <code class="parameter">col</code>
   颜色将字符串 <code class="parameter">s</code> 画到 <code class="parameter">image</code>
   所代表的图像的 <code class="parameter">x</code>，<code class="parameter">y</code>
   坐标处（这是字符串左上角坐标，整幅图像的左上角为 0，0）。如果
   <code class="parameter">font</code> 是 1，2，3，4 或 5，则使用内置字体。
  </p>
  <p class="para">
   <div class="example" id="example-2704">
    <p><strong>示例 #1 <span class="function"><strong>imagestring()</strong></span> 例子</strong></p>
    <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br /></span><span style="color: #FF8000">//&nbsp;建立一幅&nbsp;100X30&nbsp;的图像<br /></span><span style="color: #0000BB">$im&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">imagecreate</span><span style="color: #007700">(</span><span style="color: #0000BB">100</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">30</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">//&nbsp;白色背景和蓝色文本<br /></span><span style="color: #0000BB">$bg&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">imagecolorallocate</span><span style="color: #007700">(</span><span style="color: #0000BB">$im</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">255</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">255</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">255</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$textcolor&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">imagecolorallocate</span><span style="color: #007700">(</span><span style="color: #0000BB">$im</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">0</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">0</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">255</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">//&nbsp;把字符串写在图像左上角<br /></span><span style="color: #0000BB">imagestring</span><span style="color: #007700">(</span><span style="color: #0000BB">$im</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">5</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">0</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">0</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"Hello&nbsp;world!"</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$textcolor</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">//&nbsp;输出图像<br /></span><span style="color: #0000BB">header</span><span style="color: #007700">(</span><span style="color: #DD0000">"Content-type:&nbsp;image/png"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">imagepng</span><span style="color: #007700">(</span><span style="color: #0000BB">$im</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
    </div>

   </div>
  </p>
  <p class="para">
   参见 <span class="function"><a href="function.imageloadfont.html" class="function">imageloadfont()</a></span> 和
   <span class="function"><a href="function.imagettftext.html" class="function">imagettftext()</a></span>。
  </p>
 </div>

</div></div></div></body></html>